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The Evaluation of STS304 Coating Layer on S45C Substrate by Friction Surfacing Process  

Noh Joong-Suk (R&D center, TaeKwangTech Co., LTD)
Cho Houn-Jin (Welding research center, RIST)
Kim Heung-Ju (Welding research center, RIST)
Chun Chang-Gun (Welding research center, RIST)
Chang Woong-Seong (Welding research center, RIST)
Publication Information
Journal of Welding and Joining / v.23, no.6, 2005 , pp. 72-76 More about this Journal
Abstract
Friction surfacing of STS304 consumable rod on S45C substrate was investigated by microstructural observation and mechanical tests. STS304 layer formed a strongly-bonded thick layer under a wide range of surfacing conditions. The highest coating eefficiency was obtained in the condition of 1000rpm-2.5mm/sec-2.5mm/sec. The hardness distribution showed the peak value in the boundary layer and as the consumable rotation speed increased, the boundary layer also hardness increasing. As the consumable rotation speed and the traveling speed increased, the coating efficiency tended to decrease. On the other hand, as the feeding speed increased, the coating efficiency appeared to be increased. The new Fe-Cr-Ni alloy layer is showed in the interface layer on $5\~15{\mu}m$ width. After friction surfacing, corrosion resistance of STS 304 surfacing layers were equaled to that of STS304 consumable rod.
Keywords
Friction surfacing; STS304 consumable rod; S45C substrate; Hardness; Coating efficiency;
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  • Reference
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